What causes vaginal pH levels to increase?

Vaginal infections are a very common cause for the pH of the vagina to rise. The most common vaginal infection in my practice (and in all doctor's offices) is Bacterial Vaginosis which causes the normal vaginal pH to rise to above 4.5. Odor usually occurs with Bacterial Vaginosis. It will be necessary to receive medical treatment for Bacterial Vaginosis, so see your physician.

pH refers to the vagina's acidity level. A vaginal pH of 3.5-4.5 indicates that there is a perfect amount of good bacteria (lactobacilli), and no overgrowth of the bad bacteria that can cause odor, irritation and sometimes infection. What makes pH rise higher than 4.5? There are a surprising number of triggers that can upset the vaginal ecosystem:

Menstruation: Blood has a pH of 7.4, so during your period, vaginal pH becomes elevated.

Tampons: Since they retain the fluids that cause pH to increase, tampons can contribute to the problem.

Intercourse: The pH of semen is 7.1 to 8.

Douching and cleansers: Any vaginal infusion of water or other fluids can affect vaginal pH. The pH of water is 7, and fragrances and perfumes can also irritate the vagina.

Menopause or pregnancy: These are times where hormones fluctuate, which is associated with elevated pH.

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Continue Learning about Yeast Infections

Vaginal yeast infection is the most common yeast infection. Men can get yeast infections too, and people with diabetes or compromised immune systems may also get yeast infections. Some are not genital infections, but can affect th...

e mouth or other parts of the body. Treatment is either a topical application or an oral medication. Learn more about yeast infections from our experts.

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.

Yeast Infections

Vaginal yeast infection is the most common yeast infection. Men can get yeast infections too, and people with diabetes or compromised immune systems may also get yeast infections. Some are not genital infections, but can affect the mouth or other parts of the body. Treatment is either a topical application or an oral medication. Learn more about yeast infections from our experts.